Patent US2646537A successfully refreshed from Google Patents.
US2646537A
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US
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Induction motor of the capacitor type
Assignee: Individual
•
Filing: 1951-09-13
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Granted: 1953-07-21
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Expires: 1971-09-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Lewus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:21
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/04; H02K17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US479727A
Cited
US505859A
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US1433725A
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US1708910A
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US1844093A
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US2028934A
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US1925882A
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US2091665A
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US2120321A
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US2253961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |